Yamaha F20LMHB 20HP Outboard Motor – Commercial-Grade Performance (2024)

Product Overview

The Yamaha F20LMHB represents Yamaha’s heavy-duty 20HP commercial outboard solution, featuring a long 25.5″ (647mm) shaft specifically designed for deep transom workboats, patrol vessels, and commercial fishing applications. This carbureted 4-stroke delivers exceptional durability in demanding marine environments.

✅ Key Benefits:

✔ Extra-Long Shaft (647mm) – Ideal for boats requiring deep mounting
✔ Commercial-Grade Construction – Reinforced mounts and corrosion protection
✔ High-Torque Design – Optimized for heavy loads and continuous operation
✔ Simplified Maintenance – Field-serviceable carburetor system
✔ Yamaha Commercial Warranty – 1-Year coverage for professional use

📋 Technical Specifications

⚡ Performance Characteristics

• Optimal RPM Range: 5,000-6,000 RPM

• Fuel Consumption: 3.1L/hour at 4500 RPM (loaded)

• Maximum Thrust: 20% greater than standard shaft models

• Recommended Applications:

  • Patrol boats

  • Heavy work punts

  • Commercial fishing vessels

  • Search & rescue craft

🔧 Commercial-Grade Features

• Reinforced Mounting Bracket – Handles constant vibration

• Dual Water Inlets – Prevents clogging in debris-filled waters

• Heavy-Duty Clamp System – Extra holding power for rough conditions

• Corrosion-Resistant Anodes – Zinc alloy for saltwater protection

🔄 Model Comparison

• vs F20SMHB: 5.5″ longer shaft, reinforced components

• vs F25LMHB: Same shaft length, 5HP less power

• vs Competitors: 15% lighter than comparable commercial models